SI8271DB-ISR

Isolators - Gate Drivers Overview

The SI8271DB-ISR is a single-channel, galvanically isolated gate driver from Skyworks Solutions. It utilizes silicon isolation technology to provide 2.5 kVRMS insulation voltage. The device operates within a supply voltage range of 2.5 V to 5.5 V and delivers a peak output current of 4 mA. Key electrical parameters include a maximum propagation delay of 75 ns, with rise and fall times of 16 ns and 18 ns respectively. It features programmable dead time and under-voltage lockout (UVLO). The component is AEC-Q100 qualified and housed in an SOIC-8 surface-mount package.

Isolators - Gate Drivers Feature Summary

• High common-mode transient immunity for reliable signal transmission
• Programmable dead-time control to prevent shoot-through
• Integrated under-voltage lockout for safe operation
• TTL-compatible logic input threshold

Isolators - Gate Drivers Applications

• Switch-mode power supplies
• Solar inverters
• Motor control systems

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'ISR' confirms the reel packaging format when ordering. Ensure compatibility with the required SOIC-8 footprint and thermal management specifications. Confirm that the AEC-Q100 qualification meets automotive or industrial reliability standards if applicable. Cross-reference the datasheet for moisture sensitivity level handling requirements during assembly.

Isolators - Gate Drivers Selection Notes

Select this component for applications requiring high-speed isolation with low latency. The 2.5 kVRMS rating suits basic isolation needs where higher voltages are unnecessary. Consider the 4 mA output current limit for driving smaller MOSFETs or IGBTs. The single-channel configuration is optimal for half-bridge or simple switching topologies.

Isolators - Gate Drivers Part Context

This part belongs to the Si8271 series of isolated gate drivers. It shares functional similarities with other variants like the SI8271DB-IS, differing primarily in packaging quantity. The series emphasizes low skew and high CMTI, positioning it as a modern alternative to traditional optocouplers in power electronics.

Isolators - Gate Drivers Replacement Considerations

The SI8271DB-IS serves as a direct functional substitute, offering identical electrical characteristics but in tube packaging instead of reel.